A cook?

The problem couldn't be computer tested, and the possibility of a cook
(additional solution, shorter solution, ...) cannot be ruled out completely,
but seems not too likely. Any reader finding such a cook is requested to
contact me.

Written by Hans Bodlaender; with thanks to Stefanos Pantazis.
WWW page created: January 6, 1997. Last modified: January 14, 1997.
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